UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
8
INTRO-1
Jan
15/19
INTRODUCTION
Avionic System(s) Effectivity
A. The data presented in this supplement is applicable to the optional avionic systems
listed in the following table:
Avionic System(s)
Avionic System
Enstrom Part Number
Attitude Indicator
28-22062-( )
Collective Control Installation (Dual Start)
28-16080-101
Directional Gyro
28-22062-( )
GDL 69/69A
28-22082-( )
GMA 350Hc
28-22048-5
GNC 255A
28-22063-5
GNS 430W
28-22037-( )
GNS 530W
28-22050-( )
GTN 650
28-22112-3
GTX 330
28-22028-1
GTX 345
28-22028-3
KX 165A COMM/NAV
28-22063-( )
MD200-306 VOR/LOC/GS Indicator
28-22095-1
MD200-706 VOR/LOC/GS Indicator
28-22095-3
SAE5-35 Altitude Data System
28-22090-( )
SL30 28-22069-1
Aircraft Effectivity
A. The data presented in this F-28F/280F Series Maintenance Manual Supplement is
applicable to all Enstrom F-28F and 280F series model helicopters.
Supplemental Changes and Revisions
A. Subsequent to the publication of the initial issue of this supplement, changes in the
avionics equipment, support concepts and procedures, as well as information developed by
experience may affect the contents of this supplement. To ensure that coverage in the
supplement continues to reflect such changes, revised information is released by one of the
following methods:
1. Revision - A revision alters portions of the manual by replacement, addition, and/or
removal of pages.
2. Reissue - A reissue of this supplement will occur when the amount of changes
warrants complete reissue.
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